Date   
Re: cutting plexiglass #mill

Jack Kennedy
 

I drew lines on layer 46 hoping pcbgcode.ulp would see them and generate Gcode, but no joy..
pcbgcode generated 2 files (attached)..
i have a laseraxe mini mill with the latest grbl --dont remember the version i can find out if needed..
no worky worky

Re: cutting plexiglass #mill

Jack Kennedy
 

when pcbgcode.ulp opens up on eagle 9.1.0, its size top-to-bottom is larger than my display, cutting off the buttons at the bottom.. very problematic.. by mousing the right edge i can get it to slightly resize a little smaller and then i can access the accept/make board controls.. is there a place where i can edit a file to work around this??
thanks in advance for any help..

On Thu, Aug 9, 2018 at 12:00 PM, Jack Kennedy <watchman911@...> wrote:
I drew lines on layer 46 hoping pcbgcode.ulp would see them and generate Gcode, but no joy..
pcbgcode generated 2 files (attached)..
i have a laseraxe mini mill with the latest grbl --dont remember the version i can find out if needed..
no worky worky


Re: cutting plexiglass #mill

Vaughn
 

Files given look just like I kept getting til I downgraded to eagle-pcb V7.7

Hope you can get an answer so I too can upgrade.

Bes of luck Vaughn

Re: cutting plexiglass #mill

Jack Kennedy
 

I dont see anywhere where pcbgcode can select mill layer 46.. both top and bottom copper layers are selectable, and apparently the board dimension layer, but no mill layer to checkbox..
I noticed the viewer comes up empty (solid black) which technically is correct, as I have no copper top or bottom.. I am simply trying to mill a piece of plexiglass per the mill layer..
the viewer comes up with top layer by default apparently..no selection there for layer46

On Thu, Aug 9, 2018 at 12:38 PM, Vaughn Lucock <vlkteach@...> wrote:
Files given look just like I kept getting til I downgraded to eagle-pcb V7.7

Hope you can get an answer so I too can upgrade.

Bes of luck Vaughn


Re: cutting plexiglass #mill

Vaughn
 

free version of eagle only allows a few layers, may be thats the problem.

also need to set tracks as nets, i think, and width of track or nothing works.

I tried to take short cuts but in the end followed the help files and then moved from there

hope this helps some Vaughn

Re: cutting plexiglass #mill

Jack Kennedy
 

I was able to export a DXF file.. then I used dxf2gcode to generate gcode..
Id like to avoid using dxf2gcode, but its nice to see the mill working..

On Thu, Aug 9, 2018 at 1:03 PM, Vaughn Lucock <vlkteach@...> wrote:
free version of eagle only allows a few layers, may be thats the problem.

also need to set tracks as nets, i think, and width of track or nothing works.

I tried to take short cuts but in the end followed the help files and then moved from there

hope this helps some Vaughn


Re: cutting plexiglass #mill

Art Eckstein
 

Jack,
Did you tell the ulp to generate "Outline" files. That is where the milling comes in. And just to be sure, when you said you put "lines" on layer 46, the was done using "wire"?

Country Bubba

At 8/9/2018 01:00 PM, Jack Kennedy wrote:
I drew lines on layer 46 hoping pcbgcode.ulp would see them and generate Gcode, but no joy..
pcbgcode generated 2 files (attached)..
i have a laseraxe mini mill with the latest grbl --dont remember the version i can find out if needed..
no worky worky

Re: cutting plexiglass #mill

Jack Kennedy
 

yes to both.. i checked.. 

On Thu, Aug 9, 2018 at 2:05 PM, Art Eckstein <art.eckstein@...> wrote:
Jack,
Did you tell the ulp to generate "Outline" files.  That is where the milling comes in.  And just to be sure, when you said you put "lines" on layer 46, the was done using "wire"?

Country Bubba


At 8/9/2018 01:00 PM, Jack Kennedy wrote:
I drew lines on layer 46 hoping pcbgcode.ulp would see them and generate Gcode, but no joy..
pcbgcode generated 2 files (attached)..
i have a laseraxe mini mill with the latest grbl --dont remember the version i can find out if needed..
no worky worky





Re: cutting plexiglass #mill

Jack Kennedy
 

I should add this-- i have checked 'top' outlines and 'top' drills..
however, i have nothing on top or bottom layers, so beats me how that would work with the mill layer 46

On Thu, Aug 9, 2018 at 2:15 PM, Jack Kennedy <watchman911@...> wrote:
yes to both.. i checked.. 

On Thu, Aug 9, 2018 at 2:05 PM, Art Eckstein <art.eckstein@...> wrote:
Jack,
Did you tell the ulp to generate "Outline" files.  That is where the milling comes in.  And just to be sure, when you said you put "lines" on layer 46, the was done using "wire"?

Country Bubba


At 8/9/2018 01:00 PM, Jack Kennedy wrote:
I drew lines on layer 46 hoping pcbgcode.ulp would see them and generate Gcode, but no joy..
pcbgcode generated 2 files (attached)..
i have a laseraxe mini mill with the latest grbl --dont remember the version i can find out if needed..
no worky worky






Re: cutting plexiglass #mill

John Johnson
 

You might have an old version of pcbgcode before it supported the milling layer. The version on this group should be the latest. 

Regards,
John


On Aug 9, 2018, at 3:19 PM, Jack Kennedy <watchman911@...> wrote:

I should add this-- i have checked 'top' outlines and 'top' drills..
however, i have nothing on top or bottom layers, so beats me how that would work with the mill layer 46

On Thu, Aug 9, 2018 at 2:15 PM, Jack Kennedy <watchman911@...> wrote:
yes to both.. i checked.. 

On Thu, Aug 9, 2018 at 2:05 PM, Art Eckstein <art.eckstein@...> wrote:
Jack,
Did you tell the ulp to generate "Outline" files.  That is where the milling comes in.  And just to be sure, when you said you put "lines" on layer 46, the was done using "wire"?

Country Bubba


At 8/9/2018 01:00 PM, Jack Kennedy wrote:
I drew lines on layer 46 hoping pcbgcode.ulp would see them and generate Gcode, but no joy..
pcbgcode generated 2 files (attached)..
i have a laseraxe mini mill with the latest grbl --dont remember the version i can find out if needed..
no worky worky






Re: cutting plexiglass #mill

Jack Kennedy
 

i found this--
gcode&trade; Gcode Generation Utility</b><br>"
             " Version 3.6.0.4<p>"

On Thu, Aug 9, 2018 at 2:26 PM, John Johnson <john@...> wrote:
You might have an old version of pcbgcode before it supported the milling layer. The version on this group should be the latest. 

Regards,
John


On Aug 9, 2018, at 3:19 PM, Jack Kennedy <watchman911@...> wrote:

I should add this-- i have checked 'top' outlines and 'top' drills..
however, i have nothing on top or bottom layers, so beats me how that would work with the mill layer 46

On Thu, Aug 9, 2018 at 2:15 PM, Jack Kennedy <watchman911@...> wrote:
yes to both.. i checked.. 

On Thu, Aug 9, 2018 at 2:05 PM, Art Eckstein <art.eckstein@...> wrote:
Jack,
Did you tell the ulp to generate "Outline" files.  That is where the milling comes in.  And just to be sure, when you said you put "lines" on layer 46, the was done using "wire"?

Country Bubba


At 8/9/2018 01:00 PM, Jack Kennedy wrote:
I drew lines on layer 46 hoping pcbgcode.ulp would see them and generate Gcode, but no joy..
pcbgcode generated 2 files (attached)..
i have a laseraxe mini mill with the latest grbl --dont remember the version i can find out if needed..
no worky worky







no holes #drill

Vaughn
 

OK, Got my first board made and all ok. Still need to iron out a few bits but after running the etch file I got my tracks. Thanks to all who offered help with other posts

After the first run I had my tracks.
The cutter went to the home/start position we comleted, so I tried to run the drill file. This did not work
Well I chickened out as the file, when open, did not show anything on the screen, in fact no other files other than the etch file show any picture. they only had the code.

Is this correct for these files?

If I run this again and after the etch file run the drill file will I get the holes even if no picture shown?

Thanks Vaughn

Trouble with my PCB attempts. #eagle #etch #pcbgcode

tsames2008@...
 

I thought I was getting an understanding of pcbgcode.  Attached is a photo of my closest attempt yesterday at the bottom of the copper.  I decreased the sizes so that the traces should have been cut correctly.  But when I attempted the next etching this morning, the software seems to work backs from the tracings and mills into instead of outward from the trace.  Is this a bug?  I'm using chilipeppr to send the gcode to my 3018 CNC.  It seems accurate, the spacing for the .1 pad holes check out spot on the money.  Results after little light sanding using a 10 degree V bit look good but the I can not get it to create a usable etching on the copper due to the cutting, or more accurately gutting, of my trances.being destroyed.  It looks correct in the 3D view but the results are frustrating.

Any suggestions would be welcomed.


Re: Trouble with my PCB attempts. #eagle #etch #pcbgcode

Art Eckstein
 

If I had to guess, I think you might have your tool diameter set to small.
I haven't ever used a 10° cutter, but all the ones I have used do not come to an exact point. 

I found the best thing to do was to "calibrate" the tool diameter usning the method developed by Poul-Henning Kamp at < http://phk.freebsd.dk/CncPcb/calibrate.html>

I found significant differences between cutters that were supposidly the same. 

HTH

Country Bubba


At 8/9/2018 05:55 PM, tsames2008 via Groups.Io wrote:

I thought I was getting an understanding of pcbgcode.  Attached is a photo of my closest attempt yesterday at the bottom of the copper.  I decreased the sizes so that the traces should have been cut correctly.  But when I attempted the next etching this morning, the software seems to work backs from the tracings and mills into instead of outward from the trace.  Is this a bug?  I'm using chilipeppr to send the gcode to my 3018 CNC.  It seems accurate, the spacing for the .1 pad holes check out spot on the money.  Results after little light sanding using a 10 degree V bit look good but the I can not get it to create a usable etching on the copper due to the cutting, or more accurately gutting, of my trances.being destroyed.  It looks correct in the 3D view but the results are frustrating.

Any suggestions would be welcomed.




Attachments:

Re: getting ".gcode" from eagle to cnc plotter #eagle #gcode #pcbgcode

ticaret.etudu@...
 



my plotter is kind of these two (xy flatbed plotter) 
and sorry for late replying

Re: no holes #drill

Brett Pound
 

I have not looked at your other threads, but my first suggestion would be to open the drill file in notepad (or another text editor) and look at what it says - and paste a snippet of the contents here so others can look at it. Remember what a drill command sequence will be like for a CNC - move to a location, tool down, tool up, move to a location.... now depending on what software you opened it ("when open, did not show anything on the screen") you might see a pinpoint where that is meant to be, or you might see nothing. But the text will tell you the commands being issued.

I'd personally say that either way, you should resign yourself to having to cut a board, and maybe waste it if it gets screwed up. Sooner you do that (the getting a screwed up one) the sooner you'll be able to take a few liberties (and you'll also realise the fragility of this whole process) 

Re: Trouble with my PCB attempts. #eagle #etch #pcbgcode

Brett Pound
 

non-flat PCB material. How are you holding the stock down? 

Unfortunately, the tolerances are so small on this stuff, that small deviations can ruin a board. Cheap plating, uneven FR4 to start with, or poor adhesion to the baseboard can all make a good board go bad.

Honestly, using autoleveller helps, but it's still a tolerances game...

Re: Trouble with my PCB attempts. #eagle #etch #pcbgcode

peterg1000
 

Using Eagle (rev7, 8 and 9) and pcbgcode I am able to reliably mill/"etch" boards with 0.01" tracks and gaps.

For what it is worth, my setup is as follows:-

Stepcraft CNC 420 router  with UC100 motion controller and UCCNC control software on Windows PC.

Small (6" x 8") vacuum table milled flat in-situ on router.

"Chinese" vane type vacuum pump

Home made touch probe interfacing to UCCNC software. Z0 set to better than 0.001" of copper.

Low cost 30 degree milling cutters ( 0.008" (0.2mm) cutting "point") - readily available on Ebay.

Attached is a picture of an SMD board recently made using the above.

Peter

Re: getting ".gcode" from eagle to cnc plotter #eagle #gcode #pcbgcode

Art Eckstein
 

Ok, now that I understand that we are not dealing with a "commercial" plotter, we need to know what controller your using to drive the plotter and the software behind it.  Different combinations will require different solutions.

For instance, are you using and Ardunio, raspberry Pi, or what for the controller hardware?
Then what software are you running on it such as grbl, Easy Street Draw; or what??

We need this info to nail down the command set you need to use for getting meaningful output results.

Country Bubba


 At 8/10/2018 02:41 AM, ticaret.etudu@... wrote:


my plotter is kind of these two (xy flatbed plotter)
and sorry for late replying

Attachments:

Re: no holes #drill

Vaughn
 

Thanks for reply.

Did try another board and when I ran the drill.tap file, 
the cutter started 
lifted
moved to a position no where near any drill holes I needed
came down but did not touch the board
moved up and down again in same position.
repeated from move
then hung.

I terminated the operations as there was no more code and it was still running. I guess no end line.

Have attached the file. My main concern is that if I had made the heights too high and the depths no low enough it should still have completed to try all holes but as it only tied 2 and both in the wrong place I feel no code was made correctly.

thanks vaughn